SCHEDULE 40 PIPE DIMENSIONS


Schedule 40 pipe dimensions and weights according to ASME B36.10M standard. Dimensions are given in mm and inch units.


Steel Pipe Dimensions
NPS Outside Diameter, in Wall Thickness, in Plain End Weight, lb/ft DN Outside Diameter, mm Wall Thickness, mm Plain End Weight, kg/m
1/8 0.405 0.068 0.24 6 10.3 1.73 0.37
1/4 0.54 0.088 0.43 8 13.7 2.24 0.63
3/8 0.675 0.091 0.57 10 17.1 2.31 0.84
1/2 0.84 0.109 0.85 15 21.3 2.77 1.27
3/4 1.050 0.113 1.13 20 26.7 2.87 1.69
1 1.315 0.133 1.68 25 33.4 3.38 2.5
1 1/4 1.660 0.14 2.27 32 42.2 3.56 3.39
1 1/2 1.900 0.145 2.72 40 48.3 3.68 4.05
2 2.375 0.154 3.66 50 60.3 3.91 5.44
2 1/2 2.875 0.203 5.8 65 73 5.16 8.63
3 3.500 0.216 7.58 80 88.9 5.49 11.29
3 1/2 4.000 0.226 9.12 90 101.6 5.74 13.57
NPS Outside Diameter, in Wall Thickness, in Plain End Weight, lb/ft DN Outside Diameter, mm Wall Thickness, mm Plain End Weight, kg/m
4 4.500 0.237 10.8 100 114.3 6.02 16.08
5 5.563 0.258 14.63 125 141.3 6.55 21.77
6 6.625 0.28 18.99 150 168.3 7.11 28.26
8 8.625 0.322 28.58 200 219.1 8.18 42.55
10 10.750 0.365 40.52 250 273 9.27 60.29
12 12.750 0.406 53.57 300 323.8 10.31 79.71
14 14.000 0.438 63.5 350 355.6 11.13 94.55
16 16.000 0.5 82.85 400 406.4 12.7 123.31
18 18.000 0.562 104.76 450 457 14.27 155.81
20 20.000 0.594 123.23 500 508 15.09 183.43
24 24.000 0.688 171.45 600 610 17.48 255.43
32 32.000 0.688 230.29 800 813 17.48 342.94
34 34.000 0.688 245 850 864 17.48 364.92
36 36.000 0.75 282.62 900 914 19.05 420.45

Definitions:

DN: DN (Nominal Diameter) is a dimensionless designator used in the SI (metric) system to describe pipe size.

NPS: The size of all pipe is identified by the nominal pipe size (NPS) which is a dimensionless designator used in the customary unit system (inch nominal sizes).

Reference:

  • ASME B36.10M-2004, Welded and Seamless Wrought Steel Pipe